Question

If you have 18 out of 20 homework sections completed what percentage do you have

Answer 1

You have 90% of the homework sections completed

Answer 2

The word 'percent' can mean 'for every 100' or 'per 100'. And we can imagine 100% as being a whole of something.

In the question, we have 20 homework sections. 20 can be thought as the 100%. We word 'per' in 'percent' can be sought of as a division operator or the fraction line that separates the numerator and denominator.

So, we can think 18 out of 20 as $\frac{18}{20}$

First simplify the fraction.

$\frac{18}{20} = \frac{9}{10}$

Convert the fraction into a decimal.
We can convert a fraction into a decimal by dividing the numerator by the denominator.

9 / 10 = 0.9

Now convert the decimal into a percent by moving the decimal point two places to the right and making the decimal point into a % sign.

0.9 = 90%

So, 90% is the answer.